A sexual joke in which one man jams his penis in to the hands, torso, and legs of their partner, making exagerated rebound movements, before finally penetrating into their hole. Best done unexpectadly as to infuriate them.

Named for Florida Panthers goaltender Jacob Markstrom, who though skillful at blocking, has weak rebound control leaving himself open to be scored on after multiple blocks.

She looked like she was falling asleep, so I had to markstrom her last night to wake her up.